
.first {
  width: 100%;
  height: 100px;
  background-color: aliceblue;
}
.second {
  width: 100%;
  height: 900px;
}
/* 将 second里面的div 规定为inline-block  */
.second div {
  display: inline-block;
}

.left {
  width: 10%;
  height: 100%;
  background-color: antiquewhite;
  float: left;
}
.right {
  width: 90%;
  height: 100%;
  background-color: aqua;
}
iframe {
  width: 100%;
  height: 100%;
}
a{
  text-decoration: none;
}
a:hover{
  color: red;
  transform: scale(1.2,1.2);
  box-shadow: -2px -1px 22px 3px #96AA4B;
}
.container {
  display: flex;
  justify-content: center;
}
